Home Power management Supervisor & reset ICs
Home
Power management
Supervisor & reset ICs

TPS3806

ACTIVE

Dual-voltage detector with adjustable hysteresis

Order now
Data sheet

TPS3806

ACTIVE
Data sheet Order now

Product details

Number of supplies monitored 2 Threshold voltage 1 (typ) (V) 1.207, 1.8, 3 Features Separate VDD & sense, Undervoltage monitor only Reset threshold accuracy (%) 2 Iq (typ) (mA) 0.003 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0 Supply voltage (min) (V) 1.3 Supply voltage (max) (V) 6 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 85
Number of supplies monitored 2 Threshold voltage 1 (typ) (V) 1.207, 1.8, 3 Features Separate VDD & sense, Undervoltage monitor only Reset threshold accuracy (%) 2 Iq (typ) (mA) 0.003 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0 Supply voltage (min) (V) 1.3 Supply voltage (max) (V) 6 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 85
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • Dual Voltage Detector With Adjustable Hysteresis 3.3-V/Adjustable and 2-V/Adjustable
  • Assured Reset at VDD = 0.8 V
  • Supply Current: 3 µA Typical at VDD = 3.3 V
  • Independent Open-Drain Reset Outputs
  • Temperature Range ...–40°C to 85°C
  • 6-Pin SOT-23 Package
  • Dual Voltage Detector With Adjustable Hysteresis 3.3-V/Adjustable and 2-V/Adjustable
  • Assured Reset at VDD = 0.8 V
  • Supply Current: 3 µA Typical at VDD = 3.3 V
  • Independent Open-Drain Reset Outputs
  • Temperature Range ...–40°C to 85°C
  • 6-Pin SOT-23 Package

The TPS3806 integrates two independent voltage detectors for battery voltage monitoring. During power-on, RESET\ and RSTSENSE\ are asserted when supply voltage VDD or the voltage at LSENSE input become higher than 0.8 V. Thereafter, the supervisory circuit monitors V DD and LSENSE, keeping RESET\ and RSTSENSE\ active as long as VDD and LSENSE remain below the threshold voltage VIT. As soon as VDD or LSENSE rise above the threshold voltage VIT, RESET\ or RSTSENSE\ is deasserted, respectively. The TPS3806 device has a fixed-sense threshold voltage VIT set by an internal voltage divider at VDD and an adjustable second-LSENSE input. In addition, an upper voltage threshold can be set at HSENSE to allow a wide adjustable hysteresis window.

The devices are available in a 6-pin SOT-23 package. The TPS3806 device is characterized for operation over a temperature range of –40°C to 85°C.

The TPS3806 integrates two independent voltage detectors for battery voltage monitoring. During power-on, RESET\ and RSTSENSE\ are asserted when supply voltage VDD or the voltage at LSENSE input become higher than 0.8 V. Thereafter, the supervisory circuit monitors V DD and LSENSE, keeping RESET\ and RSTSENSE\ active as long as VDD and LSENSE remain below the threshold voltage VIT. As soon as VDD or LSENSE rise above the threshold voltage VIT, RESET\ or RSTSENSE\ is deasserted, respectively. The TPS3806 device has a fixed-sense threshold voltage VIT set by an internal voltage divider at VDD and an adjustable second-LSENSE input. In addition, an upper voltage threshold can be set at HSENSE to allow a wide adjustable hysteresis window.

The devices are available in a 6-pin SOT-23 package. The TPS3806 device is characterized for operation over a temperature range of –40°C to 85°C.
filter Find other Supervisor & reset ICs
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Similar functionality to the compared device
TPS37-Q1 ACTIVE Automotive 65-V window supervisor with ultra-low quiescent current and time-delay function Offers more fixed threshold voltage options, lower IQ and higher reset threshold accuracy.

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Data sheet TPS3806J20, TPS3806I33: Dual Voltage Detector With Adjustable Hysteresis datasheet (Rev. A) 18 Nov 2004
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 19 Sep 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Request
Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBV) 6 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos